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#!/usr/bin/php-gtk<?phpfunction sig_handler($signo) {	switch ($signo) {		case SIGTERM: // handle shutdown tasks		exit;		break;		case SIGHUP: // handle restart tasks		break;		default: // handle all other signals	}}// setup signal handlerspcntl_signal(SIGTERM, "sig_handler");pcntl_signal(SIGHUP, "sig_handler");/* currently no used as it make it a pain to kill the process$pid = pcntl_fork();if ($pid == -1) {	die("could not fork");} else if ($pid) {	echo "closing parent process\n";	exit(); // we are the parent}*/$server = stream_socket_server('tcp://127.0.0.1:1999');$child = false;$i = 0;while(!$child){	$i++;	echo "parent: waiting for client\n";	$client[$i] = stream_socket_accept($server, -1);	echo "parent: forking\n";	$pid = pcntl_fork();	if ($pid == -1) {		die("could not fork");	} else if ($pid) {		echo "parent: closing client connection\n";		fclose($client[$i]);		sleep(2);  // wait before acepting another client	}else{		echo "child: adding data watch\n";		Gtk::io_add_watch($client[$i], Gtk::IO_IN, 'client_data_in');		echo "child: wait for client data\n";		$child = ture;	}}if($child){	echo "child: starting Gtk loop\n";	Gtk::main();}function client_data_in($client, $type){	echo "child: writting to client connection\n";	fwrite($client, fgets($client));	fwrite($client, fgets($client));	fwrite($client, fgets($client));	echo "child: closing client connection\n";	fclose($client);	Gtk::main_quit();	echo "child: dies\n";}?>